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SWMM-CAT is a utility that adds location-specific climate change adjustments to a Storm Water Management Model (SWMM) project file. Adjustments can be applied on a monthly basis to air temperature, evaporation rates, and precipitation, as well as to the 24-hour design storm at different recurrence intervals.
Soil aeration is the mechanism of improving the exchange of gases between the atmosphere and soil. Through soil microbial activity and plant root respiration, certain gases such as oxygen will be depleted in the soil, while others, such as carbon dioxide, will build up in the soil. [1]
Stormwater, also written storm water, is water that originates from precipitation , including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil ( infiltrate ) and become groundwater , be stored on depressed land surface in ponds and puddles , evaporate back into the atmosphere, or contribute to surface runoff .
Core aeration is suitable for heavy clay soils, and spike aeration is more suited to sandy or loamy soils. Powered aerator vs. manual aerator. Powered core aerator in use. Powered aerators employ the power from ground propulsion to drive multiple tines into ground. The machines can aerate a large lawn in a relatively short time (similar to ...
California's historic wet winter inflicted at least $210 million in damage to the state's parks during storms in January and March, with a popular state beach near Santa Cruz accounting for nearly ...
The Stormwater Pollution Prevention Plan, often abbreviated as SWPPP or SW3P, is a plan created by constructors to show their plans for sediment and erosion control. [1] ...
In large cities with heavy snowfalls like Montreal and Ottawa, the snow clearing expense for each season is an important part of the seasonal public works budget and each snow storm provokes a major logistical operation involving thousands of employees working in shifts 24 hours a day. The effort can vary greatly depending on the amount of snow.
The school district's multi-use R.N. Gooden-Nancy Russell Center at Wesson on South Meridian Street spent nearly a half century as Leonard Wesson Elementary, which was named for a former ...